Keep yourself out of trouble - if a coach asks what was done quote to the best of your recollection what the rule indicates. See 6-2-4d for this one... Similarly if they fail to stop - it's "no discernible stop, coach" (discernible like beauty is in the eye of the beholder). The other one that's tricky is the 45 degree thing - the best thing to indicate there is failing to step directly toward a base or as some say failing to gain ground toward the base to which you are throwing.
The one our association picked on this year - having the pitching hand down at the side or behind the back because some coach was able to protest that a balk should have been called on a pitcher when he held/hid the ball on his front hip without a balk call and picked off a runner. When questioned, the umpire must've indicated it's legal to keep it there.